After you landing at El.Venizelos airport,you pick up your rental car and within a 25 minutes drive you reach the Port of Lavrio.There you get the Ferry and after 60 minutes you arrive in Kea's port named Korissia.You disembark the boat and follow the signs to Otzias[5 km].You pass by the Otzias beach following the sign to Kastri and after approximately 1,5km,at the top of the slope you will see three houses next to each other with azure,red and light green casements.The one with the light green casements is the cottage you are looking for.